Automatic window-sash latch



June 1 1926. 1,587,037

W. RUDOLPH AUTOMATIC WINDOW SASH LATCH Filed March 7. 1925 l atented .lune 1 1926 UNITED :sracrhs WILLIAM "RUDOLPH, "OF *GEOFT, KANSAS.

AUTOMATIC WINDOW SASH FLA'IJCH.

iApplicationfiledMarch 7,;1925. iserm No. 43, 791.

The present invention appertains to a window'latch having for its principal object toprovidewa-device which .will lock the upis to provide a latch of this nature having an extremely simple and durable structure which is thoroughly efficient and reliable 1n use, one which is easy to manipulate, and which may be easily and quickly installed on the sashes.

A still further object of the invention is to provide a device of this nature which is strong, compact, and well adapted for the purpose for which it is designed.

WVith the above and numerous objects in view which will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing,

Figure 1 is a detail section through the upper and lower sashes showing the latch associated therewith,

Figure 2 is a top plan view of the latch, and

Figure 3 is a vertical section taken through the latch.

Referring to the drawing in detail it will be seen that U represents the upper sash, and L the lower sash, which are of conventional construction. The latch is formed in two members 5 and 6. A foot 7 is formed on the bottom of the member 5 and is fastened to the lower rail of the upper sash by means of screws 8 or the like. The upper end of this member is beveled as at 9 and the face thereof adjacent member 6 is provided with a recess 10, the upper wall 11 of which forms an abutment shoulder. The inner wall of this recess, as is clearly shown in Figure 3 slants upwardly and away from the other member 6.

The member 6 is provided on its bottom with a foot 13 which is fastened to the upper rail of the lower sash L by means of screws 14 or other suitable fastening elements. The inner face of the member 6 adjacent the member 5 is provided with the vertically extending recess 15. A transversely extending opening 16 is provided in the member 6 adjacent its upper end. An overhanging extension 17 is provided on the upper end .of .the ,member .6 and is adapted toiextend. over the UPPER-611d of .thamember Sandtoengagathe beveled portionS thereof for preventing rattling of the sashes in relation to each other. A leaf spring 18 is fixed at its lower end in the lower end of the recess 15 by means of a rivet 19 or any other suitable fastening elements. This spring 18 extends a distance upwardly in abutment with the inner wall of the recess 15 and then slants outwardly from the recess so as to extend into the recess 10 of the other member 5 when the sashes are closed, thereby having its end positioned to abut the wall 11 of the recess 10 should an attempt be made to open the sashes. A pin 20 is slidably mounted through the opening 16 and at its outer end is provided with a knob 21 for operation thereof. The inner end of this pin 20 is fixed to the free end of the leaf spring 18 adjacent its upper end. It will therefore be seen that by pulling upon the knob 21 the spring 18 may be drawn back into the recess 15 so as to be out of the way of the wall 11 of the recess 10 and the sashes may then be moved to open positions.

As is shown to advantage in Figure 1 the I conventional sashes have their adjacent rails beveled as at 23 where they meet when said sashes are closed. These beveled faces 23 tend to force the sashes to move laterally away from each other and hold the sashes against the window frame for preventing rattling. My improved device cooperates with these beveled faces in that the beveled portion 9 of member 5 when engaged by the overhanging extension 17 tends to draw the members 5 and 6 toward each other and insures a tight air-proof abutment between the beveled surfaces 23 when the sashes are closed, thereby not only preventing rattling between the sashes but also preventing any draft from circulating between the sashes;

It will be apparent from the above that I have devised a novel sash latch which is both simple and eflicient in its construction, one which is thoroughly reliable, easy to install and operate and possessing a compact durable structure. It will be further apparent that the embodiment of the invention which I have described by way of example attains all the features of advantage enumerated as desirable in the statement ofthe invention and the above description, and that numerous changes in the details of construction, in the material, in the dimeninvention as hereinafter claimed Without sacrificing any of its advantages.

Having thus described the invention, What I claim as new is:

' In a latch structure of the class described, a pair of members adapted to move along side of each'other, the inner faces of the members being provided with recesses, one

' I of said members having a transversely extending opening registering with the recess, a bolt extending through the opening and slidable therein, a leaf spring fixed 'to the end of the recess in the last mentioned member and having its free end bent outwardly from the recess and attached to the bolt, an overhanging extension formed on one member, and the end of the other member being beveled to receive the overhanging extension.

In testimony whereof I aflix my signature.

' WILLIAM RUDOLPH. 

